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5. Check the coolant concentration
Before the cold season begins, check the concentration of the coolant. The coolant shall be able to work at an ambient
temperature of minus 20 degrees Celsius. If the ambient temperature is lower, the specific gravity of the antifreeze shall
be increased.
Warning: Coolant is toxic. Keep children and pets away from the coolant. If it is no longer
used, it shall be disposed in accordance with local environmental regulations.
Warning: Antifreeze shall be used in any climate.
Don't just use water as a coolant. Otherwise, the machine may be damaged due to corrosion.
The river water contains a lot of calcium and other impurities. If river water is used, scale will be
formed and adhere to the engine cooling water channel and radiator, causing heat exchange failure
and overheating.
Antifreeze is flammable, so take special care not to approach open flames.
If the antifreeze splashes into the eyes, wash eyes immediately with water and go to the hospital for
treatment in time.
Summary of Contents for U27
Page 1: ...U27Hydraulic Excavator Instruction Manual Guangxi Yuchai Heavy Industry Co Ltd...
Page 5: ...1 1 Preface...
Page 17: ...2 1 Safety regulations...
Page 44: ...3 1 Parts introduction...
Page 49: ...3 6 Panel meter Oil level pointer Timing display Water temperature pointer Indicator area...
Page 55: ...4 1 Operation guide...
Page 89: ...5 1 Maintenance...
Page 130: ...6 1 Accessories guide...